Search found 10 matches

by SoJeong Lee
Sat Mar 18, 2017 8:46 pm
Forum: *Organic Reaction Mechanisms in General
Topic: Quiz 2
Replies: 3
Views: 485

Re: Quiz 2

Does anyone know the answer for quiz 2 #4-c which asks for the rate law?
by SoJeong Lee
Fri Mar 10, 2017 2:15 pm
Forum: *Alkanes and Substituted Alkanes (Staggered, Eclipsed, Gauche, Anti, Newman Projections)
Topic: different conformation
Replies: 1
Views: 172

different conformation

Can someone explain why the staggered conformation has a lower energy compared to the eclipsed conformation?
by SoJeong Lee
Sun Mar 05, 2017 4:43 pm
Forum: *Cycloalkenes
Topic: Cyclopropane
Replies: 1
Views: 199

Cyclopropane

can someone explain why cyclopropane is not CH3-CH2-CH3?
by SoJeong Lee
Sun Feb 26, 2017 11:22 am
Forum: *Organic Reaction Mechanisms in General
Topic: electrophilic addition reaction
Replies: 1
Views: 255

electrophilic addition reaction

Can someone explain if it's possible to switch the position of H and Br in a cholesterol example we did in class and if not, why?
by SoJeong Lee
Sun Feb 19, 2017 3:01 pm
Forum: Reaction Mechanisms, Reaction Profiles
Topic: microscopic reversibility
Replies: 1
Views: 221

microscopic reversibility

Can someone please explain why microscopic reversibility, reaction having same intermediates, is important?
by SoJeong Lee
Sun Feb 12, 2017 5:24 pm
Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
Topic: What is n? [ENDORSED]
Replies: 8
Views: 724

Re: What is n? [ENDORSED]

n refers to the numbers of moles and it is important to plug it in when doing the math problems.
by SoJeong Lee
Sun Feb 05, 2017 11:38 am
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: electrons flow
Replies: 1
Views: 116

electrons flow

Can someone explain why the volt decreases when electrons flow from left to right?
by SoJeong Lee
Sun Jan 29, 2017 10:37 am
Forum: Gibbs Free Energy Concepts and Calculations
Topic: difference between free energy and standard free energy
Replies: 1
Views: 1527

difference between free energy and standard free energy

Can someone explain the difference between G and standard G? I think Dr. Lavelle mentioned something about the difference between them when they equal to 0 but can't remember.
by SoJeong Lee
Sat Jan 21, 2017 12:05 am
Forum: Third Law of Thermodynamics (For a Unique Ground State (W=1): S -> 0 as T -> 0) and Calculations Using Boltzmann Equation for Entropy
Topic: (Isothermal)reversible expansion at constant temperature
Replies: 1
Views: 251

(Isothermal)reversible expansion at constant temperature

Can someone explain the expansion of an ideal gas for me? I understand the lost energy getting recovered by the heat from the surroundings but can't understand how the work takes place in the beginning and how the mass decreases slowly.
by SoJeong Lee
Fri Jan 13, 2017 11:05 pm
Forum: Thermodynamic Systems (Open, Closed, Isolated)
Topic: Standard Reaction Enthalpy Property
Replies: 2
Views: 292

Standard Reaction Enthalpy Property

What is the main difference between a standard reaction enthalpy and a standard reaction enthalpy of formation?

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